![]() You can also use the Bode Plotter to measure a signal’s voltage gain or phase shift. Also, \$w_n=w_p\$, causes an infinite response (undamped system - oscillator). Multisim 14.0 and 14.0.1 Help: Multisim 14.1 Help: Multisim 14.2 Help: The Bode Plotter produces a graph of a circuit’s frequency response and is most useful for analyzing filter circuits. Finally, implement the algorithm on LabView/Multisim for future hardware tests. Then apply the algorithm on sophisticated circuit model. The meaning of \$w_n\$ for the Butterworth response is the same as for the first-order case, that is, \$w_n\$ represents the -3 dB frequency, also called cuttoff frequency. Secondly, using the algorithm to test RL circuit to verify with real bode plot of the circuit. The magnitude curve is sais to be maximally flat (no peak). In filter theory, that special value for \$\zeta=0.707\$ corresponds to a Butterworth response. Note on figure below: When varying the damping ratio \$\zeta\$, the peak follows a specific curve. Where \$\omega_n\$ is the natural frequency (also called corner frequency when considering assymptotes), the peak Peaks in the frequency response can only exist in systems with conjugate complex poles.įor an underdamped (\$\zeta 0.5\$) second-order system, the peak appears specifically for \$\zeta<1/\sqrt$$
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